Bio 2 Plasma Membrane and Transport

The cell membrane is selectively permeable, which means...

• All materials can enter and leave the cell
• Certain things can enter while others cannot
• The cell manually sorts through all materials
• Only certain cells can interact with the cell.

Which is NOT a form of active transport?

• Endocytosis
• Osmosis
• Exocytosis
• Pinocytosis

In the image, the cell would:

• lose water and shrink
• lose water and swell
• gain water and shrink
• gain water and swell

Tags

NGSS.HS-LS1-3

In the image, the cell would:

• gain water and shrink
• gain water and swell
• lose water and shrink
• lose water and swell

Identify cholesterol molecule

• structure a

• structure b

• structure h

• structure i

Identify microfilament of the cytoskeleton

• structure i

• structure b

• structure g

• structure c

identify a glycolipid

• structure a

• structure d

• structure e

• structure g

Identify a peripheral protein

• structure a

• strucure b

• structure g

• structure h

Tags

NGSS.MS-LS1-2

Small, nonpolar, hydrophobic molecules such as fatty acids

• easily pass through the membrane's bilayer

• very slowly diffuse through the bilayer

• require transport proteins

• enter through endocytosis

Membrane phospholipids

• have hydrophobic heads that face the center of the membrane and are shielded from water

• have hydrophilic tails that face outward

• remain fluid because they are tightly packed

• none of these